Abstract: A procedure is designed for the preparation of a photocatalytic bituminous road surface consisting of a stage involving the preparation of a bituminous base (2) with a thickness coming between 10 mm and 60 mm and containing gaps (5), and a subsequent stage for spreading a cement mortar (7) over said bituminous base (2), containing: a photocatalytic material for achieving a photocatalytic reaction, a plasticizing admixture suitable for fluidifying said mortar (7), and amorphous silicon dioxide suitable for making said mortar (7) more compact, said cement mortar (7) thus being suitable for coating the gaps (5) in said bituminous base (2).

Abstract: It is disclosed a cement paint comprising a pigmenting substance (2), a cement binder (6) and a fluidizing liquid (4) and further comprising: a calcareous aggregate (7) including calcareous granules of calcium carbonate CaCO3 having maximum sizes smaller than 100 microns, a vitreous aggregate (8) including vitreous granules having maximum sizes smaller than 100 microns, and a photocatalyst (9) adapted to oxidize polluting substances in the presence of light and air.

Abstract: It is disclosed a cement paint comprising a pigmenting substance (2), a cement binder (6) and a fluidizing liquid (4) and further comprising: a calcareous aggregate (7) including calcareous granules of calcium carbonate CaCO3 having maximum sizes smaller than 100 microns, a vitreous aggregate (8) including vitreous granules having maximum sizes smaller than 100 microns, and a photocatalyst (9) adapted to oxidize polluting substances in the presence of light and air.